101036021 has 4 divisors (see below), whose sum is σ = 101085312. Its totient is φ = 100986732.

The previous prime is 101035999. The next prime is 101036051. The reversal of 101036021 is 120630101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-101036021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101035987 and 101036005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101036051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21431 + ... + 25716.

It is an arithmetic number, because the mean of its divisors is an integer number (25271328).

Almost surely, 2^101036021 is an apocalyptic number.

It is an amenable number.

101036021 is a deficient number, since it is larger than the sum of its proper divisors (49291).

101036021 is an equidigital number, since it uses as much as digits as its factorization.

101036021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49290.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 101036021 is about 10051.6675730945. The cubic root of 101036021 is about 465.7563072824.

Adding to 101036021 its reverse (120630101), we get a palindrome (221666122).

The spelling of 101036021 in words is "one hundred one million, thirty-six thousand, twenty-one".